SALTSCAPESTM SCALE DEFENDER SaltScapesTM Scale Defender binds to calcium-based scale crystals to prevent them from sticking together and clumping on your pool surfaces. FOR BEST RESULTS: Use monthly to ensure a clean and efficient cell. Saltwater pools are favored for their simpler and gentler approach to pool care, but they do have some unique maintenance needs when compared to traditional chlorine pools. The SaltScapes Saltwater Pool Care System was designed specifically for saltwater pools and provides everything you will need to keep your saltwater pool sparkling and protect your equipment and pool surfaces. 1 Quart Scale Defender.